- overlay loading: now overlay is moved as the last element from where it is inserted to avoid widgets covered by backgrounds of html elements after it.
- default overlayId
- widget position in overlay coordinates (worldX, worldY) (experimental)
- cursor position on widget world (cursorWorldX, cursorWorldY) (experimental)
- jsonSkeletonKey: allow to load a specific skeleton in json containing multiple skeletons
- onViewportManualStart: start the widget when in manual-start and enters the viewport the first time
- overlayAssignedPromise: a promise that resolves when the overlay is assigned to the widget. Reads the comment on it
- appendTo: to append the widget created using js and wait for the overlayAssignedPromise to resolve
- changed how loadingPromise works
- added cursorCanvasX, cursorCanvasY, cursorWorldX, cursorWorldY to overlay (experimental)
